The Optimal-31 dataset was proposed in Wang, Qi, et al. "Scene classification with recurrent attention of VHR remote sensing images." IEEE Transactions on Geoscience and Remote Sensing 57.2 (2018): 1155-1167.
https://doi.org/10.1109/TGRS.2018.2864987
No modifications have been made to this dataset, except the archive format (from RAR to Zip). It is rehosted from it's original OneDrive location.
